Vien Thong Dai Viet Joint Stock Company Address: 34 Hoang Viet, Ward 4, Tan Binh District, Ho Chi Minh City Enterprise code: 0309499391 Phone: 02862566777 Representative: Tran Quoc Toan Adress: Hamlet 6, Cam Phuc Bac Ward, Cam Ranh City, Khanh Hoa Province Ward 4, Tan Binh District, Ho Chi Minh CityFounding date: 8 - 10 - 2009